Shoulder Screw

NASM51576-27

NASM51576-27
(NSN) National Stock Number
5305-01-628-4105
Federal Supply Classification
5305 Screws
Item Name Code
22846
Schedule B Code
7318152000
Summary

2a thread class, right-hand thread direction, 0.4063 inches minimum and 0.4687 inches maximum thread length, 1.0313 inches nominal fastener length, flat chamfer head style, 0.4688 inches minimum and 0.5312 inches maximum head diameter

DAC HCC DMIL RNCC
1 - - 3
RNVC SADC MSDS RNAAC
2 - - ZZ
Identification

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes:bolt, internal wrenching and screw, cap, socket head.

INC FIIG Concept Condition
22846 A003B0 - 1
Specifications
Thread Class
2a
Details A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
Thread Direction
right-hand
Details The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
Thread Length
0.4063 inches minimum and 0.4687 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
1.0313 inches nominal
Details The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.
Head Style
flat chamfer
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Diameter
0.4688 inches minimum and 0.5312 inches maximum
Details The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
Head Height
0.1875 inches minimum and 0.2499 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Internal Drive Style
hexagon
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
Nominal Thread Diameter
0.250 inches
Details The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
Width Across Flats
0.1560 inches nominal
Details The shortest straight line between flats,perpendicular to the height.
Thread Quantity Per Inch
20
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Material
steel corrosion resisting overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Thread Series Designator
unc
Details A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
50600 - Q -
RVC WCC TCC SHC
- 713 Z 9

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Manufacturer
DEVCOM CHEMICAL BIOLOGICAL CENTER DBA CHEMICAL BIOLOGICAL CENTER DIV U.S. DEPT OF ARMY
CAGE: 5B5M3
ROCK ISLAND , IL , 61299-7390
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-01-628-4105
What is the NIIN of the NSN 5305-01-628-4105?
The National Item Identification Number (NIIN) of the NSN 5305-01-628-4105 is 01-628-4105
When the NSN 5305-01-628-4105 was assigned to the Federal Catalog?
It was assigned 10 years ago, on Thu, May 22, 2014
Does the NSN 5305-01-628-4105 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-01-628-4105 contain any hazardous material?
No data in HMIRS

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